A group called Impeach Trump Now says it is paying about $4,800 to lease the large sign near Southern Boulevard and Interstate 95 for four weeks. Trump himself isn’t expected to return to Palm Beach until later in the fall, when the Mar-a-Lago Club opens for the 2017-18 season.

“It’s not necessary for him to see it. It’s a symbolic location,” said Edward Erikson, the communications director for Free Speech For People, which joined with a group called Roots Action to back the impeachment effort.

Erikson said 1.2 million people have signed an online impeachment petition that says Trump’s “refusal to divest from his business interests has placed him in direct violation of the United States Constitution.”

Erikson said the group hopes to add billboards in New York, Washington and “other areas where Trump has property, where we think there are conflicts of interest between Trump as president and Trump as businessman.”